发明名称 |
METHOD OF CONVERSION OF CAST IRON IN CONVERTER |
摘要 |
<p>ferrous metallurgy; conversion of cast iron in oxygen converter. SUBSTANCE: proposed method consists in charging scrap, pouring cast iron, introducing lime and manganese-containing materials, blowing metal with oxygen to preset content of carbon at position of lance of 10-12 passes from level of still bath. Manganese-containing materials and lime are added before pouring cast iron into converter. Oxygen lancing is effected at flow rate of 3.0 - 4.0 cum/m/min. t before expiration of 35 to 40% of total duration of blowing followed by reduction by 22-42% of initial intensity of blowing. Lime and manganese-containing materials are added at ratio of 1:(0.1-0.4). During final period, blowing is performed at initial intensity to content of carbon in metal of 0.09-0.23%. EFFECT: increased residual content of manganese in metal upon completion of blowing; increased steel output. 1 tbl</p> |
申请公布号 |
RU2180006(C2) |
申请公布日期 |
2002.02.27 |
申请号 |
RU20000109110 |
申请日期 |
2000.04.11 |
申请人 |
OAO "ZAPADNO-SIBIRSKIJ METALLURGICHESKIJ KOMBINAT" |
发明人 |
AJZATULOV R.S.;PAK JU.A.;SOKOLOV V.V.;KOMSHUKOV V.P.;BUJMOV V.A.;LIPEN' V.V.;SHCHEGLOV M.A.;AMELIN A.V.;SHISHKIN V.G.;PROTOPOPOV E.V.;MASHINSKIJ V.M.;ERMOLAEV A.I. |
分类号 |
C21C5/28;(IPC1-7):C21C5/28 |
主分类号 |
C21C5/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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